Pediatric T-wave memory after accessory pathway ablation in Wolff-Parkinson-White syndrome.

ABSTRACT:

Background

Altered ventricular depolarization due to manifest accessory pathway conduction (ie, Wolff-Parkinson-White syndrome) leads to repolarization abnormalities that persist after pathway ablation. The term T-wave memory (TWM) has been applied to these changes, as the postablation T-wave vector "remembers" the pre-excited QRS vector. In adults, these abnormalities can be misinterpreted as ischemia leading to unnecessary interventions. To date, no comprehensive studies have evaluated this phenomenon in the pediatric population.

Objective

The purpose of this study was to define TWM in the pediatric population, identify preablation risk factors, and delineate the timeline of recovery.

Methods

Pre- and postablation electrocardiograms (ECGs) in patients ≤25 years were

SUBMITTER: Austin KM 

PROVIDER: S-EPMC9026902 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature